The Last Supper was a fresco done by Leonardo da Vinci. The fresco was of Jesus and his twelve disciples when Jesus told them that one of them would betray him. The fresco was done on a wall of the dining hall of the monastary of Santa Maria delle Grazie in Milan, Italy. The technique of a fresco required Leonardo to mix dry pigments with water and brush them onto damp, freshly laid plaster. Leonardo would have had to work quickly if he used this method. Leonardo wanted to be able to work slowly and be able to revise his work. He made his own mixture that kept moisture out. Sadly, the mixture didn't work and shortly after Leonardo completed the fresco in 1497, it started to fade and flake away. Many people have tried to restore the masterpiece. During World War II, a bomb was droped on the monastary. Luckly, sandbags were placed in front of the painting so there wasn't much harm done.
Summers, David. "Last Supper, The." World Book Student. 2009. [Place of access.] 14 May 2009
<http://www.worldbookonline.com/student/article?id=ar748588>.